Home / 778,737.64-1,074,647.14-439,314.92

Finding the Fourth Proportional to 778,737.64, 1,074,647.14 and 439,314.92

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Solution

The fourth proportional to 778,737.64, 1,074,647.14 and 439,314.92 is: 606,248.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,737.64 : 1,074,647.14 = 439,314.92 : x
  2. Step 2: Convert to fraction form
    778,737.64/1,074,647.14 = 439,314.92/x
  3. Step 3: Cross multiply
    778,737.64x = 1,074,647.14 × 439,314.92
  4. Step 4: Simplify right side
    778,737.64x = 472,108,522,337.33
  5. Step 5: Solve for x
    x = 472,108,522,337.33/778,737.64
  6. Step 6: Final answer
    x = 606,248.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.